11Thomas Jefferson to Joseph Milligan, 18 February 1818 (Jefferson Papers)
A Treatise on Political Economy (Destutt de Tracy) [index entry]
12Thomas Jefferson to Joseph Milligan, 13 March 1818 (Jefferson Papers)
A Treatise on Political Economy (Destutt de Tracy) [index entry]
13Destutt de Tracy to Thomas Jefferson, 11 April 1818 (Jefferson Papers)
A Treatise on Political Economy (Destutt de Tracy) [index entry]
14Joseph Milligan to Thomas Jefferson, 11 May 1818 (Jefferson Papers)
A Treatise on Political Economy (Destutt de Tracy) [index entry]
15Joseph Milligan to Thomas Jefferson, 17 October 1818 (Jefferson Papers)
A Treatise on Political Economy (Destutt de Tracy) [index entry]
16Thomas Jefferson to Joseph Milligan, 25 October 1818 (Jefferson Papers)
A Treatise on Political Economy (Destutt de Tracy) [index entry]
17Thomas Jefferson to Joseph Milligan, [ca. 25 October 1818] (Jefferson Papers)
A Treatise on Political Economy (Destutt de Tracy) [index entry]
18Joseph Milligan to Thomas Jefferson, 30 October 1818 (Jefferson Papers)
A Treatise on Political Economy (Destutt de Tracy) [index entry]
19Joseph Milligan to Thomas Jefferson, 20 November 1818 (Jefferson Papers)
A Treatise on Political Economy (Destutt de Tracy) [index entry]
20Thomas Jefferson to Lafayette, 23 November 1818 (Jefferson Papers)
A Treatise on Political Economy (Destutt de Tracy) [index entry]